Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Failing to heed warnings about the danger of UV rays can have serious consequences. A form of radiation, UV rays can damage the outer layers of the eyes, a condition called photokeratitis, or more seriously, damage the retina.
Photokeratitis
Photokeratitis, commonly known as snow blindness, is akin to a sunburn of the eye. It’s a painful condition caused by too much UV exposure and is normally not noticeable until a few hours after the damage occurs. Photokeratitis can be caused by sun reflecting from sand, water, ice and snow, or through tanning lamps and arc welding. Symptoms include blurry vision, tearing, sensitivity to bright light, seeing halos and twitching eyelids.
The damage from photokeratitis typically goes away on its own in a few days. It can be prevented through the use of proper eyewear, including a welder’s mask or by wearing glasses or goggles that block high amounts of UV light.
Solar Retinopathy
Of greater concern during an eclipse is solar retinopathy, the name given to eye damage caused by directly looking at the sun. It occurs when UV light from the sun burns the retina and destroys the cells that allow us to see.
The process is painless because the retina has no pain receptors, and the damage typically isn’t noticeable until it’s too late.
Solar retinopathy can cause permanent vision loss, depending on the severity of the eye damage. Without the use of appropriate protective eyewear, solar retinopathy can occur when someone looks at even the smallest portion of the sun, even when it doesn’t feel uncomfortable to do so.
Sunglasses, polarizing filters, smoked glass and other forms of non-approved eye protection are not safe to use to look at the sun during an eclipse, even if they appear to dim the sun’s rays.
The only way to safely look at the sun is through the use of special-purpose solar filters, including eclipse glasses and hand-held solar viewers.
Learn more about protecting your eyes during the eclipse by going here.
It gives people something different from their normal day to day routine and the hype that it's been 99 years since the last one adds to it.Just out of curiosity, why do people want to photograph this so much? Does it somehow differ from the other modern eclipses that have been photographed over the past twenty or so years? It's cool but I don't get the mania that has surrounded this particular eclipse. Do people just need distraction I can't recall so much hype around an eclipse in the past couple of decades.
It gives people something different from their normal day to day routine and the hype that it's been 99 years since the last one adds to it.
The internet makes things seem much larger than they may otherwise be. But remember that past humans have slaughtered thousands in sacrifice to bring the Sun back from the evil Moon, or some other such weirdness.
Hmmm... speaking of Frank Reynolds... this is pretty interesting and well done:I just stumbled over the ABC News clip from February, 26, 1979 (always liked Frank Reynolds for nostalgic reasons).
http://abcnews.go.com/US/back-1979-total-solar-eclipse/story?id=49310831
But remember that past humans have slaughtered thousands in sacrifice to bring the Sun back from the evil Moon, or some other such weirdness.
Just out of curiosity, why do people want to photograph this so much? Does it somehow differ from the other modern eclipses that have been photographed over the past twenty or so years? It's cool but I don't get the mania that has surrounded this particular eclipse. Do people just need distraction I can't recall so much hype around an eclipse in the past couple of decades.